Pitts Singer, T., Bosch, J., Kemp, W.P., Trostle, G.E. 2008. Field use of an incubation box for improved emergence timing of Osmia lignaria populations used for orchard pollination. Apidologie. 39: 235-246
Bosch, J., Kemp, W.P., Trostle, G.E. 2006. Bee population returns and cherry yields in an orchard pollinated with Osmia lignaria (Hymenoptera: Megachilidae). Journal of Economic Entomology. 99(2):408-413.